patch 8.1.2026: possibly using uninitialized memory

Problem:    Possibly using uninitialized memory.
Solution:   Check if "dict" is NULL. (closes #4925)
diff --git a/src/version.c b/src/version.c
index f412732..c15abcb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2026,
+/**/
     2025,
 /**/
     2024,